Pinlock 70 Anti Fog Shield for HJC CS-15; CL-17; C91Pinlock 70 HJC CS 15 CL 17 The Pinlock 70 is our premium fog resistant solution for riders. Enhanced with stronger fog resistant properties, the insert lens has extended fog resistant endurance which helps riders see better through challenging weather conditions. The Pinlock 70 creates a double shield system through a silicon seal between the helmet face shield and Pinlock insert lens, which makes up a double glass type of solution that prevents